A Justice Ministry panel on Tuesday gave the green light for the ministry to write bills for new domestic laws in preparation for signing the Hague Convention, which would theoretically promise other countries that Japan will try its utmost to return abducted children.

Critics, however, are not too optimistic because whether children will be returned to their original countries will depend largely on how Japan's family court judges interpret any new laws.

The United States and countries in Europe have urged Japan to sign the Hague Convention on the Civil Aspect of International Child Abduction, and have criticized Tokyo for letting a Japanese parent get away with abducting his or her children from a spouse in failed international marriages.